A method and a system to improve circuit switched fall back (CSFB) performance specified in the 3rd generation partnership project (3GPP) standard are provided. The system includes a user equipment (UE) to collect a neighbor frequency list from the network along with the redirection frequency transmitted by the long term evolution (LTE) network in response to extended service request (ESR) initiated by the UE. The UE selects the best frequency on which the UE can camp for CS call by applying additional offset criteria over the existing S-criteria during selection of serving frequency that effectively increases CSFB call success rate. The method enables the UE to override timer T300 and parameter N300 in the radio resource control (RRC) connection establishment process during a CSFB call procedure and effectively utilize the ESR time to attempt maximum possible RRC connection requests.